"The Truth" is a catchphrase that the leadership of Jehovah's Witnesses use all the time. It distorts the meaning. It is helpful to know what the phrase means to JW's in general.
"The Truth" represents the entirety of bible teacings and dogma that are currently taught and believed upon by Jehovah's Witnesses.
There is actually a definition for that in a Watchtower, but I have long ago forgotten which issue its in.
"The Truth" has nothing to do with what is true and false. That's why arguements on the veracity of "The Truth" are pointless endeavors. JW's are just as guilty of believing in their own traditions, (esp around 1914 and other dates) as any other religion.
So they call it "The Truth". Doesn't mean a damn thing.
Are they wrong about a great deal of what they insist is true? Hell yeah! From "Armageddon is just around the corner", to avoiding blood medicine, to their lies about what teachings have changed and why, there is a ton wrong.
So its up to JW's to be honest with themselves. Do they believe what the evidence points to? Or the latest spin that JW leadership puts on it? The trends suggest that more and more that JW's are slowly figuing it out.